servlets_tutorial

Java Servlets
}
}
Compile above servlet ReadCookies and create appropriate entry in web.xml file. If you
would have set first_name cookie as "John" and last_name cookie as "Player" then
running http://localhost:8080/ReadCookies would display the following result:
Found Cookies Name and Value
Name : first_name, Value: John
Name : last_name, Value: Player
Delete Cookies with Servlet
To delete cookies is very simple. If you want to delete a cookie then you simply need to
follow up following three steps:
Read an already existing cookie and store it in Cookie object.
Set cookie age as zero using setMaxAge() method to delete an existing cookie.
Add this cookie back into response header.
Example
The ollowing example would delete and existing cookie named "first_name" and when
you would run ReadCookies servlet next time it would return null value for first_name.
// Import required java libraries
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
// Extend HttpServlet class
public class DeleteCookies extends HttpServlet {
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException
{
Cookie cookie = null;
Cookie[] cookies = null;
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